Next task with my 64 DeVille project is to check TH400 condition. Gearbox came with the car but was already removed. It is 64 but not possible to say if it is the original to this car as there is no VIN stamped like in later gearboxes. And again we have one-year-only part, so I hope no need to replace mechanical parts. I got 64 gasket kit already but probably will need some more rubber for inside parts.

Two bolts from extension housing were so corroded that they broke when opening, otherwise no damages yet. O-ring in filter was not properly in place, and was cut actually. Modulator is not holding vacuum so need to be replaced. Governor valve is stuck, I hope cleaning will solve that.

I will clean all parts and replace gaskets, and other parts if necessary. Oil was very clean and red inside but I think oil has been changed or added not long time ago. 
 I can see that 64 is slightly different from 79 which I repaired year ago. All hints and advice are highly appreciated. Shop Manual is in heavy use.


Views: 718

Reply to This

Replies to This Discussion

I did not notice that but will check! Thanks Mark.

Rear band is ok, I took closer look. 

I opened governor, cleaned the valve and it started to move like it should.

It seems that control valve assy gaskets for 64 are difficult to find. Need to search more. Luckily I got gaskets out in good condition so I can use the old ones if new ones not available.

Matti, I know you bought parts from TA Motor before and they might have what you are looking for now.

However I have bought gear box parts from MrMechanic. He had stuff that no other had. So try him.

When TA doesn't have the parts they recommend BA Motors for used parts, but usually BA don't post the stuff on the website. Call or email them is a better bet.

There is also a chance American Cars scrapyard in Osby might have something, maybe not for the gear box but for other parts.

Finally, Hortlund could very well be your savior. I got tires for my -87 Buick and -64 Cadillac from him.

Big thanks, Anders! Looks like I will get all I need from Björn in MrMechanic.

Tack så mycket!

Valve body is easy to check and clean with help from Shop manual. Dismantling, cleaning, checking, assembly with atf oil. One dirt accumulation was found inside 1-2 shift valve.

I use ultrasound washer for cleaning metal parts.

Testing detent solenoid with 12V power.

Oil pump gets new bushings and seals

Thanks Tony

I do this slowly and carefully, trying to follow Shop manual and selected youtube videos together with great advice from this 63/64 community. I have made smaller repairs for decades, but year ago I first time repaired  TH400 for my 79 Seville. And last year I started rebuild of 429 for my 64 DeVille, first V8 I have ever built. These old beauties are quite simple without electronics. I have M.Sc degree in Mechanical Engineering, so I am not afraid to touch these big animals even though I have no working experience in that field. I must say I enjoy repairing these even more than driving.

Rear support has major deformation after 57 years. Only 65 tmls driven but already in such poor condition. Luckily new ones are available.

Yes. These mounts usually get soaked with oil, transmission fluid, etc. leaking from the engine which deteriorates the rubber then they collapse flatter than a pancake. After you replace it and your motor mounts, your driveline angle will be corrected which will reduce vibration and noise in the driveline.

I am happy that I took the time and checked all friction plates in all clutches. 4 out of 5 friction plates in forward clutch had lost almost all of their friction material!  There were some scrathes and wear in steel plates as well as a result of metal touching metal there. Interesting that all plates in other clutches are in great condition. I need to replace all 5 friction plates and 5 metal plates in forward clutch.

There is one good friction plate in bottom of the photo to see the difference

It would have been really bad surprise to find this out when transmission and engine will be on first drive after installation. I have no idea if the gearbox was working at all before it was removed from the car, probably was slipping quite a lot.. I am happy I found this out at this stage.

RSS

Photos

  • Add Photos
  • View All

Forum

Modern radio antenna …

Started by Mack in 1963/64 Cadillac Specific Discussion yesterday. 0 Replies

Just replaced radios for the modern radios with Bluetooth and all the dance things and wanted to share how I went around the antenna knob… I’ve installed a regular two way GM window switch in the…Continue

BOOT

Started by John Inglesby in 1963/64 Cadillac Specific Discussion. Last reply by Marty Smith yesterday. 1 Reply

I recently purchased a new boot for my 64 convertible and was wondering how difficult it s to install. I'm not very mechanical. It looks like the chrome piece behind and at top of seats needs to be…Continue

63 Exhaust Hanger Mystery

Started by Mike Travers in 1963/64 Cadillac Specific Discussion. Last reply by Cees de Bunje on Monday. 8 Replies

I'm in the process of installing a stainless steel single exhaust from Classic Exhaust on my '63 Coupe de Ville. I'm running into a mystery regarding my middle exhaust bracket. I have the bracket…Continue

TH400 Dipstick Tube Seal

Started by Logan Robb in 1963/64 Cadillac Specific Discussion. Last reply by Logan Robb on Monday. 9 Replies

In my “rebuild” of the transmission, I ordered a dipstick tube seal. However, I’m not sure if the right one came or how to best install the seal. I am wondering if anyone has replaced this seal OR…Continue

Blog Posts

Loud air moving sound within carb with cleaner removed

Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments

While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?

Vintage Air AC

Posted by Chase on March 21, 2024 at 5:55am 0 Comments

Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!

accumulator dryer

Posted by CHRIS CARLSON on December 6, 2023 at 10:54am 0 Comments

Who rebuilds original AC  accumulator dryers for 1964 Cadillac? I have been on Classic auto air in Tampa FL wait list for over a year ,  There is one on Old air products web site that looks very similar to the original # 21-4214A but states it fits 1962 Gm cars, The one recommended for a 1964 Cadillac is half the length 21-4215A    What  is everyone using ? I would prefer to be as original as possible. Thanks

'63 Eldorado trumpet horn + 2 standard horns restoration

Posted by Les Eastling on November 15, 2023 at 10:34am 1 Comment

My son, unbeknownst to me, had all three of the horns on our 1963 Eldorado completely restored. We had recently added the Eldorado trumpet horn to the two standard horns and the sound was not very good... we had heard good ones so we knew something was not right... but there was not much we could do to get better sound from the 3 horns. 

There is a restoration service called The Horn Works who my son…

Continue

Videos

  • Add Videos
  • View All

© 2024   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service